4 At the hearing on penalty, the parties produced and tendered a substantial document setting out the Statement of Agreed Facts in relation to all matters involving both defendants. In view of the significance of the Statement of Agreed Facts it is appropriate to reproduce, omitting formal parts, the substance of that document:
2. At all material times Richard Edward Killen Gordon (the First Defendant) and Susan Catherine Gordon (the Second Defendant) were trading as Manton Grazing Company (Young), whose registered business address is situated at a property known as 'Manton', Temora Road, Young, in the State of New South Wales.
3. At all material times the First and Second Defendants were employers and carried on the business trading as Manton Grazing Company (Young) in partnership, for reward in connection with livestock raising including shearing of sheep and cropping of the land. They raised merinos, weathers [sic] and shorthorn cross steers ("the business").
4. At all material times the First and Second Defendants employed Malcolm Lillie ("Lillie") and Allan Ross Peters ("Peters").
5. On Monday 27 November 2000 Lillie and Peters commenced work at a property known as "Nungi", located at Fontenoy Road, Young, in the State of New South Wales ("Nungi"). The Directors of Nungi were the First Defendant's father and sister. The First and Second Defendants had an oral agreement with the Directors of Nungi to lease the property for the purpose of carrying on the business.
6. On 27 November 2000 at Nungi, Lillie performed duties involving wool rolling and classing. Peters performed skirting duties. The work was performed in connection with the shearing of sheep which took place inside a corrugated iron shearing shed ("the shed") at Nungi.
7. On the same day, the First and Second Defendants contracted Brett Downey ("Downey") to work as a shearer to shear about 2000 sheep in the shed. Downey brought with him David Garry McDonald ("McDonald") to assist in shearing inside the shed.
8. On 27 November 2000, Downey and McDonald arrived at the shed at about 7:00am and commenced shearing at about 7:30am. At about 11am McDonald started to dry retch and vomit. He left the shed and went to his car and slept until 3pm at which time Downey checked on him. McDonald returned to the shed and commenced shearing again. He was forced to stop shearing after shearing two sheep when he started to dry retch again.
9. On the evening of 27 November 2000 Lillie moved more sheep into the shed for shearing the following day.
10. On Tuesday 28 November 2000 Downey and McDonald returned to the shed to continue shearing duties. With them was Mark Gruber ("Gruber") whose duties on that day involved wool classing ("the shearing crew").
11. Between about 7.00am and 7.30am when the shearing crew arrived for work they smelt an odour inside the shed which has been variously described as a "gassy smell", "unusual smell" and "similar to sulphur". Gruber stated that it was an unusual smell which he had not smelt before in shearing sheds. Lillie later suggested to the Prosecutor that the smell was Ectomort. Gruber checked the condition of the wool which he described as being damp and yellow/creamy in colour with a black tip. The smell was stronger at the back of the raised board and pens.
12. The shearing crew noticed several drums near the door inside the shed. Both Gruber and Downey stated that Lillie informed them that one of the drums contained the chemical Diazinon. A drum had a hole in the lid. Gruber observed numerous other chemicals inside the shed including a 5-litre pack of Vetrazin.
13. When interviewed by the Prosecutor Lillie stated that he had not used Diazinon at Nungi since about 1994/1995.
14. Shortly after the shearing crew commenced work, McDonald stated that he started to dry retch and vomit in the shed. He experienced a headache, burning eyes, burping and a bad taste in his mouth. His symptoms forced him to stop work.
15. Downey stated that he then commenced to dry retch. He experienced a headache and burning eyes, heartburn and a bad taste in his mouth, which he described as a "sulphur-like taste". He had been feeling off-colour overnight.
16. Downey stated that both he and McDonald were in the pen dry retching. McDonald stated that he saw Downey dry retching so both men stopped work.
17. Gruber stated that he observed McDonald and Downey dry heaving.
18. Gruber stated that at about 8.15am he experienced a burning in his chest, constant burping, dry retching and burning eyes. He also could not continue work because of his symptoms.
19. Downey and McDonald went outside the shed and observed Gruber and another worker vomiting. Downey stated he could not continue working because of his symptoms.
20. The shearing crew waited for Lillie to return to the shed which he did about 9.00am. Lillie told the shearing crew that some of the sheep had been jetted (sprayed by hand with a spray wand) in about the second week of October, 2000.
21. At approximately 9.30am on 28 November 2000 Downey and McDonald left Nungi and went to Young to seek medical treatment. They were examined by Dr Hamilton-Gibbs. Gruber was examined by Dr Paul Sevier the following day.
22. On 28 November 2000, Dr Hamilton-Gibbs notified WorkCover of what he considered to be a possible chemical contamination involving Downey and McDonald.
23. Subsequently, blood and urine samples were taken by Dr Kurmath in Temora, New South Wales. The samples were received by the WorkCover laboratory on 15 December 2000 and analysed. The test results confirmed the presence of inorganic arsenic in urine samples taken from both Downey and McDonald and the presence of organophosphate in the urine sample taken from Downey.
24. A urine test on 15 December 2000 for Downey showed organophosphate pesticide exposure namely Dimethylthiophosphate (DMTP) (20 umol/mol creatinine) and Dimethyldithiophosphate (DMDTP) (25 umol/mol creatinine) and inorganic Arsenic (11 umol/mol creatinine).
25. McDonald's urine test results on 15 December 2000 showed inorganic Arsenic (25 umol/mol creatinine). Tests on McDonald on 1 January 2001 and 3 January 2001 showed arsenic in urine (25 umol/mol creatinine).
26. The urine test on McDonald and Gruber did not show organophosphate pesticide exposure.
27. Blood tests taken from the shearing crew showed no suppression of Cholinesterase. Cholinesterase is a reasonable measure of one aspect of organophosphate injury. However the diagnosis of chronic organophosphate symptoms after exposure is a clinical diagnosis rather than a laboratory diagnosis.
28. Downey has stated that he is presently unable to undertake heavy physical work. He has consulted a doctor on approximately 20 occasions and suffers ongoing headaches, periodically feeling nauseous and has pain in his ankles and knees.
29. McDonald returned to work in October 2001. He has consulted a doctor approximately 15 to 20 times. He stated that he suffers ongoing headaches (centred behind the eyes), joint aches when performing physical work, bad taste in the mouth, heartburn, reflux, nose bleed and diarrhoea.
30. Gruber has only undertaken approximately six months work since 28 November 2000. He has consulted the doctor approximately 15 to 20 times. He stated he is currently on sickness benefits and suffers headaches (behind the eyes), backaches, kidney pain, pain in the joints, chest pain, stomach cramps, continual bloodshot and yellow eyes and diarrhoea.
31. WorkCover Inspectors attended Nungi on 18 December 2000 and conducted an inspection of the property. A sample was taken from a container labelled as 'Vetrazin', which was located on the back of a white Triton 4WD utility, registration no. TON-615, owned by the First and Second Defendants. This sample tested positive to the organophosphate Propetamphos. Vetrazin's active ingredient is the chemical known as Cyromazine. It does not contain the ingredient Propetamphos. Propetamphos is the active ingredient in Ectomort.
32. During the WorkCover inspection, Peters told the Prosecutor that he had been spraying the sheep with Diazinon. He pointed to the container on the truck labelled "Vetrazin" as the source of the spray treatment. Diazinon is also an organophosphate and is not an ingredient contained in Vetrazin.
33. During an interview with the Prosecutor on 26 August 2002, Peters said that prior to 28 November 2000, the sheep at Nungi were administered Propetamphos once and Vetrazin once. Peters said he mixed chemicals together (namely, Ectomort and Vetrazin) and sprayed the sheep with the mixture.
34. The First and Second Defendants also arranged for two tests on the wool shorn by the shearing crew at the property on 27 and 28 November 2000. These tests were conducted by CSIRO Wool and Fibre Technology.
35. The first test identified Cyromazine in the wool. The result was sent to the WorkCover Authority on 5 March 2001. The second test was derived from 20 core samples taken from the bale of wool that was shorn on 28 November 2000, the results of which were acquired after a section 62 Notice was served on the First and Second Defendants. This test also identified Cyromazine in the wool but in addition it identified the organophosphate Diazinon at a level of 0.2mg/kg.
36. On 26 March 2001 the WorkCover Laboratory Service Unit received samples taken from a water tank at Nungi and from soil inside the shute [sic] and race which had been used for treating the sheep at Nungi. These samples when tested detected Propetamphos (the active ingredient in Ectomort) and Diazinon in the soil sample taken from the shute [sic] and race. The race was where the sheep entered the shed (...) and the shute [sic] was where the sheep exited the shed (...). Arsenic was detected in the race and shute [sic] soil samples as well as in the sludge of the water tank. No arsenic was detected in the tank water or the water in an urn in the shed.
37. Both Downey and McDonald stated that they washed their hands with water from the tank before eating on 27 November 2000.
38. Propetamphos is an organophosphate pesticide and is the active ingredient of a chemical having the trade name "Ectomort". The First Defendant purchased quantities of Ectomort on 31 December 1996 at a cost of $860.00. A Material Safety Data Sheet ("MSDS") dated 29 January 1999 for Ectomort (was before the Court). One of Ectomort's active ingredients is Propetamphos. Propetamphos is listed in the National Commission's List of Designated Hazardous Substances. It is described there as toxic and having, "very serious irreversible effects in contact with skin and if swallowed".
39. Diazinon is an organophosphate insecticide. It was used in general pest control and agriculture. It was used in dips and drenches for sheep and in flea control on domestic animals. The use of Diazinon has been associated with a high incidence of acute poisoning (that is symptoms can occur within a short period of time from exposure).
40. Organophosphate pesticides and arsenic (inorganic) are both listed in Column 1, Schedule 1 of the OHS (Hazardous Substances) Regulation 1996 as hazardous substances for which health surveillance is required.
41. Health surveillance must be provided for any employee who has been identified, as part of a workplace assessment process, as having a significant risk of exposure to a scheduled hazardous substance under the Hazardous Substance Regulation 1996.
42. Vetrazin is the trade name of a product which has an active ingredient known as Cyromazine. It is used as a fly strike preventative on sheep. It is used as a spray in sheep blowfly treatment. (Before the Court was a copy of) the MSDS for Vetrazin. It is a hazardous substance according to the criteria of Worksafe Australia. Although it is characterised as a hazardous substance by Worksafe Australia the MSDS suggests that it has an overall low toxicity.
43. Neither Peters nor Lillie had received any instructions in relation to the MSDS pertaining to Ectomort (entitled "Ectomort Plus Lanolin Sheep Dip"). In fact both first saw that particular MSDS after 28 November 2000. The shearing crew comprising Downey, McDonald and Gruber had not read or seen any documentation or had explained to them the nature of any chemicals with which they may come into contact during the shearing work inside the shed at Nungi.
44. The First and Second Defendants did not obtain an MSDS for Vetrazin until 30 November 2000.
45. On 18 December 2000 during the WorkCover inspection it became apparent that certain chemicals, namely organophosphates and vetrazin were being mixed together and then decanted into one container labelled 'Vetrazin'. This practice resulted in the incorrect labelling of hazardous substances. The First and Second Defendants had no or no adequate system in place to ensure stored chemicals were correctly labelled.
46. The First and Second Defendants did not, at the relevant times, keep any records or register or other documentation in relation to accountability and correct labelling of chemical substances. On 4 April 2001 the First Defendant handed in chemicals to Chemcollect NSW. Chemcollect NSW was a project jointly funded by the Commonwealth and NSW Governments to clear farms of unwanted chemicals. A number of the chemicals handed in by the First Defendant were described as "unknown" or "pesticides general" or "herbicides". Lead Arsenate and Arsenic was also handed in.
47. The First and Second Defendants at no time engaged in any consultation with the employees in relation to any likely exposure to risk of injury arising from hazardous substances used in the workplace or any requirements (for example, for health surveillance) concerning any hazardous substances used in the workplace or any risk assessments or need for training or information.
48. No training instruction or information was provided to the employees by the First and Second Defendants or to the shearing crew in relation to the safe use and handling of hazardous substances prior to them commencing work in the shed at Nungi.
49. As a result of the investigation into this accident, several improvement notices were issued in relation to:
i. failure to provide appropriate training and induction in the use of hazardous substances;
ii. inadequate assessment of hazards relating to the storage, use and handling of hazardous substances;
iii. inadequate information being kept on hazardous substances;
iv. failure to keep adequate and appropriate records related to hazardous substances;
v. exposure to organophosphates and subsequent failure to provide health surveillance;
vi. use of hazardous substances which are not adequately, appropriately or correctly labelled;
vii. failure to provide or supply an MSDS;
viii. failure to control, eliminate or substitute the use of hazardous substances;
ix. unsuitable, inadequate or inappropriate supply of Personal Protective Equipment ("PPE").
50. The First and Second Defendants have since undertaken training and induction in the use of hazardous substances with their employees. All MSDS have since been obtained for all chemicals used at the place of work. Storage of chemicals is now in a well-ventilated and secure area and is sign-posted to indicate the presence of such chemicals. Each worker now has their own personal protective equipment.
51. The First and Second Defendants fully co-operated with WorkCover and its inspectors.
52. The First and Second Defendants have no prior convictions.